Inconsistent interpretation of HTTP requests in MarkLogic - CVE-2026-9190
Published: August 6, 2026
Vulnerability identifier: #VU141063
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-9190
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials.
The vulnerability exists due to inconsistent interpretation of HTTP requests in the MarkLogic HTTP App Server when parsing HTTP requests. A remote attacker can send specially crafted HTTP requests to bypass authentication and authorization checks, hijack a legitimate user's session, or capture credentials.
Affected software
MarkLogic
How to mitigate CVE-2026-9190
Install security update from vendor's website.
MarkLogic - addressed in versions 11.3.6, 12.0.3